/*
 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.drools.workbench.screens.globals.model;

import org.jboss.errai.common.client.api.annotations.Portable;
import org.kie.soup.commons.validation.PortablePreconditions;

/**
 * Definition of a Global
 */
@Portable
public class Global {

    private String alias;
    private String className;

    public Global() {
    }

    public Global(final String alias,
                  final String className) {
        setAlias(alias);
        setClassName(className);
    }

    public String getAlias() {
        return alias;
    }

    public void setAlias(String alias) {
        this.alias = PortablePreconditions.checkNotNull("alias",
                                                        alias);
    }

    public String getClassName() {
        return className;
    }

    public void setClassName(String className) {
        this.className = PortablePreconditions.checkNotNull("className",
                                                            className);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof Global)) {
            return false;
        }

        Global global = (Global) o;

        if (alias != null ? !alias.equals(global.alias) : global.alias != null) {
            return false;
        }
        if (className != null ? !className.equals(global.className) : global.className != null) {
            return false;
        }

        return true;
    }

    @Override
    public int hashCode() {
        int result = alias != null ? alias.hashCode() : 0;
        result = 31 * result + (className != null ? className.hashCode() : 0);
        return result;
    }
}
